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William Thomas Lawman
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Individual
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Individual
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Publication of GB190820502ApublicationCriticalpatent/GB190820502A/en
20,502. Lawman, W. T. Sept. 30. Sash fastenings. -A pivoted-arm sash-fastener is secured by turning down a bent hinged arm A, carrying a pin B which passes through holes in the catch piece and in the base-plate C. Specifications No. 12,153, A.D. 1894, and No. 7298, A.D. 1908, are referred to.
GB190820502D1908-09-301908-09-30Improvement in Window Sash Fastener.
ExpiredGB190820502A
(en)